[PATCH v6 1/2] arm64: dts: qcom: x1e78100-t14s: add hpd gpio to dp controller

[Johan Hovold]

On Thu, Jul 31, 2025 at 09:51:26PM +0100, Christopher Obbard wrote:
> The eDP controller has an HPD GPIO. Describe it in the device tree
> for the generic T14s model, as the HPD GPIO is used in both the
> OLED and LCD models which inherit this device tree.

> @@ -5779,6 +5779,11 @@ tlmm: pinctrl at f100000 {
>  			gpio-ranges = <&tlmm 0 0 239>;
>  			wakeup-parent = <&pdc>;
>  
> +			edp_hpd_active: edp-hpd-active-state {

The node name and label needs an index as this SoC has two edp hpd pins
as I already pointed out.

> +				pins = "gpio119";
> +				function = "edp0_hot";

And you also need to configure the bias somewhere as you should not rely
on the firmware having configured things for you (as I also pointed out
before).

On my T14s the internal pull-up has been disabled.

> +			};

Johan